Rob Knight is a pioneer in studying human microbes, the community of tiny single-cell organisms living inside our bodies that have a huge — and largely unexplored — role in our health. “The three pounds of microbes that you carry around with you might be more important than every single gene you carry around in your genome,” he says. Find out why. Topics: Tedtalks, TED, Talks, biology, health, TED2014, 2014
Think you know a thing or two about sex? Think again. In this fascinating talk, biologist Carin Bondar lays out the surprising science behind how animals get it on. favoritefavoritefavoritefavoritefavorite ( 1 reviews ) Topics: TedTalks, TED, Talks, animals, biology, sex, TEDGlobal 2013, 2013
Throughout humankind's history, we've driven species after species extinct: the passenger pigeon, the Eastern cougar the dodo .... But now, says Stewart Brand, we have the technology (and the biology) to bring back species that humanity wiped out. So -- should we? Which ones? He asks a big question whose answer is closer than you may think. Topics: TEDTalks, TED, Talks, biology, philosophy, technology, TED2013, 2013
Did you know you have functioning neurons in your intestines -- about a hundred million of them? Food scientist Heribert Watzke tells us about the "hidden brain" in our gut and the surprising things it makes us feel. Topics: TEDTalks, TED, Talks, biology, food, science, technology, TEDGlobal 2010, 2010
Marlene Zuk delightedly, determinedly studies insects. In this enlightening, funny talk, she shares just some of the ways that they are truly astonishing — not least for the creative ways they have sex. Topics: Tedtalks, TED, Talks, biology, insects, science, sex, TEDWomen 2015, 2015
An insect's ability to fly is perhaps one of the greatest feats of evolution. Michael Dickinson looks at how a common housefly takes flight with such delicate wings, thanks to a clever flapping motion and flight muscles that are both powerful and nimble. But the secret ingredient: the incredible fly brain. (Filmed at TEDxCaltech.) Topics: TEDTalks, TED, Talks, biology, insects, science, TEDxCaltech, 2013
Chef Dan Barber squares off with a dilemma facing many chefs today: how to keep fish on the menu. With impeccable research and deadpan humor, he chronicles his pursuit of a sustainable fish he could love, and the foodie's honeymoon he's enjoyed since discovering an outrageously delicious fish raised using a revolutionary farming method in Spain. Topics: TEDTalks, TED, Talks, agriculture, biology, environment, food, health, TED2010, 2010
It's relatively easy to imagine a new medicine, a better cure for some disease. The hard part, though, is testing it, and that can delay promising new cures for years. In this well-explained talk, Geraldine Hamilton shows how her lab creates organs and body parts on a chip, simple structures with all the pieces essential to testing new medications -- even custom cures for one specific person. (Filmed at TEDxBoston) Topics: TEDTalks, TED, Talks, biology, illness, medical research, TEDxBoston 2013, 2013
In the quest to map the brain, many scientists have attempted the incredibly daunting task of recording the activity of each neuron. Gero Miesenboeck works backward -- manipulating specific neurons to figure out exactly what they do, through a series of stunning experiments that reengineer the way fruit flies percieve light. Topics: TEDTalks, TEDGlobal 2010, TED, Talks, biology, brain, neurology, science, 2010
Just like us, the monarch butterfly sometimes gets sick thanks to a nasty parasite. But biologist Jaap de Roode noticed something interesting about the butterflies he was studying — infected female butterflies would choose to lay their eggs on a specific kind of plant that helped their offspring avoid getting sick. How do they know to choose this plant? Think of it as “the other butterfly effect” — which could teach us to find new medicines for the treatment of human disease. Topics: Tedtalks, TED, Talks, biology, insects, science, TEDYouth 2014, 2014
High school science teacher Tyler DeWitt was ecstatic about a lesson plan on bacteria (how cool!) -- and devastated when his students hated it. The problem was the textbook: it was impossible to understand. He delivers a rousing call for science teachers to ditch the jargon and extreme precision, and instead make science sing through stories and demonstrations. (Filmed at TEDxBeaconStreet.) Topics: TEDTalks, TED, Talks, biology, children, education, science, TEDxBeaconStreet, 2012
Nature’s beauty can be easily missed -- but not through Louie Schwartzberg’s lens. His stunning time-lapse photography, accompanied by powerful words from Benedictine monk Brother David Steindl-Rast, serves as a meditation on being grateful for every day. Topics: TedTalks, TED, Talks, biodiversity, biology, compassion, culture, photography, TEDxSF, 2011
In this intriguing talk, biologist Ameenah Gurib-Fakim introduces us to rare plant species from isolated islands and regions of Africa. Meet the shape-shifting benjoin; the baume de l'ile plate, which might offer a new treatment for asthma; and the iconic baobab tree, which could hold the key to the future of food. Plus: monkey apples. Topics: TedTalks, TED, Talks, Planets, biodiversity, biology, nature, TEDGlobal 2014, 2014
Liver cancer is one of the most difficult cancers to detect, but synthetic biologist Tal Danino had a left-field thought: What if we could create a probiotic, edible bacteria that was "programmed" to find liver tumors? His insight exploits something we're just beginning to understand about bacteria: their power of quorum sensing, or doing something together once they reach critical mass. Danino, a TED Fellow, explains how quorum sensing works — and how clever bacteria working... Topics: Tedtalks, TED, Talks, bacteria, biology, cancer, health, TED2015, 2015
We humans set a premium on our own free will and independence ... and yet there's a shadowy influence we might not be considering. As science writer Ed Yong explains in this fascinating, hilarious and disturbing talk, parasites have perfected the art of manipulation to an incredible degree. So are they influencing us? It's more than likely. Topics: TedTalks, TED, Talks, biology, microbiology, science, TED2014, 2014
Our bodies are covered in a sea of microbes -- both the pathogens that make us sick and the "good" microbes, about which we know less, that might be keeping us healthy. At TEDMED, microbiologist Jonathan Eisen shares what we know, including some surprising ways to put those good microbes to work. Topics: TEDTalks, TED, Talks, biology, health, microbiology, science, TEDMED 2012, 2012
Drugs alone can't stop disease in sub-Saharan Africa: We need diagnostic tools to match. TED Senior Fellow Frederick Balagadde shows how we can multiply the power and availability of an unwieldy, expensive diagnostic lab -- by miniaturizing it to the size of a chip. Topics: TEDTalks, TED, Talks, biology, engineering, invention, microbiology, TED2010, 2010
Arthritis and injury grind down millions of joints, but few get the best remedy -- real biological tissue. Kevin Stone shows a treatment that could sidestep the high costs and donor shortfall of human-to-human transplants with a novel use of animal tissue. Topics: TEDTalks, TED, Talks, biology, design, future, medicine, technology, TED2010, 2010
Before life existed on Earth, there was just matter, inorganic dead "stuff." How improbable is it that life arose? And -- could it use a different type of chemistry? Using an elegant definition of life (anything that can evolve), chemist Lee Cronin is exploring this question by attempting to create a fully inorganic cell using a "Lego kit" of inorganic molecules -- no carbon -- that can assemble, replicate and compete. Topics: TEDTalks, TEDGlobal 2011, TED, Talks, biology, life, nanoscale, science, 2011
We’re not done with anatomy. We know a tremendous amount about genomics, proteomics and cell biology, but as Diane Kelly makes clear at TEDMED, there are basic facts about the human body we’re still learning. Case in point: How does the mammalian erection work? Topics: TEDTalks, TED, Talks, biology, science, sex, TEDMED 2012, 2012
Do our smells make us sexy? Popular science suggests yes — pheromones send chemical signals about sex and attraction from our armpits to potential mates. But, despite what you might have heard, there is no conclusive research confirming that humans have these smell molecules. In this eye-opening talk, zoologist Tristram Wyatt explains the fundamental flaws in current pheromone research, and shares his hope for a future that unlocks the fascinating, potentially life-saving knowledge tied up in... Topics: TedTalks, TED, Talks, animals, biology, smell, TEDxLeuvenSalon, 2013
What is killing the Tasmanian devil? A virulent cancer is infecting them by the thousands -- and unlike most cancers, it's contagious. Researcher Elizabeth Murchison tells us how she's fighting to save the Taz, and what she's learning about all cancers from this unusual strain. Contains disturbing images of facial cancer. Topics: TEDTalks, TEDGlobal 2011, TED, Talks, animals, biology, cancer, science, 2011
They're the second largest fish in the world, they're almost extinct, and we know almost nothing about them. At TEDxDublin, Simon Berrow describes the fascinating basking shark ("Great Fish of the Sun" in Irish), and the exceptional -- and wonderfully low-tech -- ways he's learning enough to save them. Topics: TEDTalks, TEDxDublin, TED, Talks, biology, environment, oceans, science, 2010
Where are the baby dinosaurs? In a spellbinding talk from TEDxVancouver paleontologist Jack Horner describes how slicing open fossil skulls revealed a shocking secret about some of our most beloved dinosaurs. Topics: TEDTalks, TEDxVancouver, TED, Talks, biology, paleontology, science, 2010
3D animation can bring scientific hypotheses to life. Molecular biologist (and TED Fellow) Janet Iwasa introduces a new open-source animation software designed just for scientists. Topics: TedTalks, TED, Talks, TED Fellows, biology, science, technology, TED2014, 2014
One afternoon, Kees Moeliker got a research opportunity few ornithologists would wish for: A flying duck slammed into his glass office building, died, and then … what happened next would change his life. [Note: Contains graphic images and descriptions of sexual behavior in animals.] Topics: TEDTalks, TED, Talks, biology, birds, humor, science, sex, TED2013, 2013
Biologist Mohamed Hijri brings to light a farming crisis no one is talking about: We are running out of phosphorus, an essential element that's a key component of DNA and the basis of cellular communication. All roads of this crisis lead back to how we farm -- with chemical fertilizers chock-full of the element, which plants are not efficient at absorbing. One solution? Perhaps … a microscopic mushroom. (Filmed at TEDxUdeM.) Topics: TEDTalks, TED, Talks, agriculture, biology, food, TEDxUdeM, 2013
How do we search for alien life if it's nothing like the life that we know? At TEDxUIUC Christoph Adami shows how he uses his research into artificial life -- self-replicating computer programs -- to find a signature, a 'biomarker,' that is free of our preconceptions of what life is. Topics: TEDTalks, TED, Talks, biology, evolution, life, science, TEDxUIUC, 2011
In this highly personal talk from TEDMED, magician and stuntman David Blaine describes what it took to hold his breath underwater for 17 minutes -- a world record (only two minutes shorter than this entire talk!) -- and what his often death-defying work means to him. Warning: do NOT try this at home. Topics: TEDTalks, TEDMED 2009, TED, Talks, biology, magic, medicine, performance, 2009
Biologist Sara Lewis has spent the past 20 years getting to the bottom of the magic and wonder of fireflies. In this charming talk, she tells us how and why the beetles produce their silent sparks, what happens when two fireflies have sex, and why one group of females is known as the firefly vampire. (It's not pretty.) Find out more astonishing facts about fireflies in Lewis' footnotes, below. Topics: TedTalks, TED, Talks, biology, evolution, insects, TED2014, 2014
Inspired by biological design and self-organizing systems, artist Heather Barnett co-creates with physarum polycephalum, a eukaryotic microorganism that lives in cool, moist areas. What can people learn from the semi-intelligent slime mold? Watch this talk to find out. Topics: TedTalks, TED, Talks, art, biology, science, TEDSalon Berlin 2014, 2014
How does a robin know to fly south? The answer might be weirder than you think: Quantum physics may be involved. Jim Al-Khalili rounds up the extremely new, extremely strange world of quantum biology, where something Einstein once called “spooky action at a distance” helps birds navigate, and quantum effects might explain the origin of life itself. Topics: Tedtalks, TED, Talks, biology, birds, consciousness, life, physics, TEDGlobalLondon, 2015
Tissue engineer and TED Fellow Nina Tandon is growing artificial hearts and bones. To do that, she needs new ways of caring for artificially grown cells -- techniques she's developed by the simple but powerful method of copying their natural environments. Topics: TEDTalks, TED2011, TED, Talks, biology, biomimicry, biotech, science, 2011
Astronomer Dimitar Sasselov and his colleagues search for Earth-like planets that may, someday, help us answer centuries-old questions about the origin and existence of biological life elsewhere (and on Earth). Preliminary results show that they have found 706 "candidates" -- some of which further research may prove to be planets with Earth-like geochemical characteristics. Topics: TEDTalks, TED, Talks, astronomy, biology, life, technology, universe, TEDGlobal 2010, 2010
For 28 years, Denise Herzing has spent five months each summer living with a pod of Atlantic spotted dolphins, following three generations of family relationships and behaviors. It's clear they are communicating with one another -- but is it language? Could humans use it too? She shares a fascinating new experiment to test this idea. Topics: TEDTalks, TED, Talks, animals, biology, communication, language, oceans, science, TED2013, 2013
Neuroscientist Vilayanur Ramachandran outlines the fascinating functions of mirror neurons. Only recently discovered, these neurons allow us to learn complex social behaviors, some of which formed the foundations of human civilization as we know it. Topics: TEDTalks, TED, Talks, biology, brain, cognitive science, evolution, neurology, science, TEDIndia...
In this visually dazzling talk, Jonathan Drori shows the extraordinary ways flowering plants -- over a quarter million species -- have evolved to attract insects to spread their pollen: growing 'landing-strips' to guide the insects in, shining in ultraviolet, building elaborate traps, and even mimicking other insects in heat. Topics: TEDTalks, TEDSalon London Spring 2011, TED, Talks, biology, botany, environment, life, science,...
Physicist Geoffrey West has found that simple, mathematical laws govern the properties of cities -- that wealth, crime rate, walking speed and many other aspects of a city can be deduced from a single number: the city's population. In this mind-bending talk from TEDGlobal he shows how it works and how similar laws hold for organisms and corporations. Topics: TEDTalks, TEDGlobal 2011, TED, Talks, biology, business, cities, complexity, math, science, 2011
Jill Bolte Taylor got a research opportunity few brain scientists would wish for: She had a massive stroke, and watched as her brain functions -- motion, speech, self-awareness -- shut down one by one. An astonishing story. Topics: TEDTalks, TED, Talks, biology, brain, consciousness, global issues, illness, science, TED2008, 2008
One hundred sixty years after the invention of the needle and syringe, we’re still using them to deliver vaccines; it’s time to evolve. Biomedical engineer Mark Kendall demos the Nanopatch, a one-centimeter-by-one-centimeter square vaccine that can be applied painlessly to the skin. He shows how this tiny piece of silicon can overcome four major shortcomings of the modern needle and syringe, at a fraction of the cost. Topics: TEDTalks, TED, Talks, biology, health, medicine, science, technology, TEDGlobal 2013, 2013
In his lab, Martin Hanczyc makes "protocells," experimental blobs of chemicals that behave like living cells. His work demonstrates how life might have first occurred on Earth ... and perhaps elsewhere too. Topics: TEDTalks, TEDSalon London Spring 2011, TED, Talks, biology, chemistry, life, science, 2011
Each of our bodies is utterly unique, which is a lovely thought until it comes to treating an illness -- when every body reacts differently, often unpredictably, to standard treatment. Tissue engineer Nina Tandon talks about a possible solution: Using pluripotent stem cells to make personalized models of organs on which to test new drugs and treatments, and storing them on computer chips. (Call it extremely personalized medicine.) Topics: TEDTalks, TED, Talks, biology, engineering, health care, medical research, medicine, science,...
What do science and play have in common? Neuroscientist Beau Lotto thinks all people (kids included) should participate in science and, through the process of discovery, change perceptions. He's seconded by 12-year-old Amy O'Toole, who, along with 25 of her classmates, published the first peer-reviewed article by schoolchildren, about the Blackawton bees project. It starts: "Once upon a time ... " Topics: Tedtalks, TED, Talks, bees, biology, children, collaboration, insects, science, youth, TEDGlobal...
What is genomics? How will it affect our lives? In this intriguing primer on the genomics revolution, entrepreneur Barry Schuler says we can at least expect healthier, tastier food. He suggests we start with the pinot noir grape, to build better wines. Topics: TEDTalks, Taste3 2008, TED, Talks, biology, entrepreneur, food, genetics, science, technology, 2008
Whales have a surprising and important job, says marine biologist Asha de Vos: these massive creatures are ecosystem engineers, keeping the oceans healthy and stable by ... well, by pooping, for a start. Learn from de Vos, a TED Fellow, about the undervalued work that whales do to help maintain the stability and health of our seas — and our planet. Topics: Tedtalks, TED, Talks, TED Fellows, biology, nature, oceans, TEDGlobal 2014, 2014
In this prophetic 2003 talk -- just days before Dolly the sheep was stuffed -- biotech ethicist Gregory Stock looked forward to new, more meaningful (and controversial) technologies, like customizable babies, whose adoption might drive human evolution. Topics: TEDTalks, TED2003, TED, Talks, biology, biotech, children, evolution, genetics, science,...
Use dancers instead of powerpoint. That's science writer John Bohannon's "modest proposal." In this spellbinding choreographed talk from TEDxBrussels he makes his case by example, aided by dancers from Black Label Movement. Topics: TEDTalks, TEDxBrussels, TED, Talks, TEDxFeatured, biology, dance, entertainment, physics,...
Filmmaker Penelope Jagessar Chaffer was curious about the chemicals she was exposed to while pregnant: Could they affect her unborn child? So she asked scientist Tyrone Hayes to brief her on one he studied closely: atrazine, a herbicide used on corn. (Hayes, an expert on amphibians, is a critic of atrazine, which displays a disturbing effect on frog development.) Onstage together at TEDWomen, Hayes and Chaffer tell their story. Topics: TEDTalks, TEDWomen, TED, Talks, animals, biology, children, film, plastic, science, sex, 2010
Biologist Sheila Patek talks about her work measuring the feeding strike of the mantis shrimp, one of the fastest movements in the animal world, using video cameras recording at 20,000 frames per second. Topics: TEDTalks, TED2004, TED, Talks, Featured, biology, biomechanics, oceans, science, technology, video,...
Pawan Sinha details his groundbreaking research into how the brain's visual system develops. Sinha and his team provide free vision-restoring treatment to children born blind, and then study how their brains learn to interpret visual data. The work offers insights into neuroscience, engineering and even autism. Topics: TEDTalks, TED, Talks, biology, health care, medicine, neurology, science, sight, TEDIndia 2009, 2009